Mark Leibler served in the past as the Chairman of KH Board of Trustees. He serves as National Chairman of the Australia Israel & Jewish Affairs Council (AIJAC), Life Chairman of the Federal United Israel Appeal and a Governor of the Australia Israel Chamber of Commerce.He is a former President of the Federal United Israel Appeal of Australia, President of the Zionist Federation of Australia and a member of the Executive of the WZO. He currently serves on the Board of Governors of Haifa University.

A graduate of MelbourneUniversity and YaleUniversityLawSchool, Mark Leibler is senior partner in the Melbourne law firm of Arnold Bloch Leibler.

Mark Leibler is a member of the Board of Governors since 1992. He is a member of the Jewish Agency Executive. He is the Chair of the Comptroller's Committee.